.top {
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  z-index: 1;
  position: relative;
}

.top1 {
  width: 1000px;
  margin: 0 auto;
  height: 80px;
}

.top1_left {
  overflow: hidden;
  height: 80px;
  float: left;
}

.top1_left img {
  float: left;
  margin-top: 28px;
}

.top1_left ul {
  color: #fff;
  font-size: 16px;
  margin-left: 50px;
  float: left;
  overflow: hidden;
}

.top1_left ul li {
  padding: 0 26px;
  display: block;
  height: 80px;
  line-height: 80px;
  text-align: center;
  position: relative;
}

.top1_left ul li::after {
  content: ' ';
  width: 100%;
  height: 2px;
  position: absolute;
  bottom: 0;
  left: 0;
  background-image: linear-gradient(166deg, rgba(255, 255, 255, 0.00) 0%, #FFFFFF 51%, rgba(255, 255, 255, 0.00) 100%);
}

.top1_right {
  float: right;
}

.top1_right a {
  display: block;
  height: 80px;
  float: left;
  color: white;
  font-size: 16px;
  margin-right: 50px;
  line-height: 80px;
}

.top1_right a:last-child {
  margin-right: 0;
}


.banner {
  background: url(../img/banner6.jpg) no-repeat;
  background-position: center;
  margin-top: -80px;
  position: relative;
}

.banner1 {
  height: 500px;
  width: 1000px;
  margin: 0 auto;
}

.banner1 h1 {
  color: #fff;
  font-size: 40px;
  padding-top: 220px;
}

.banner1 p {
  font-size: 14px;
  line-height: 24px;
  color: #fff;
  margin-top: 16px;
  width: 500px;
}

.nav {
  overflow: hidden;
}

.nav ul {
  width: 1000px;
  margin: 0 auto;
  overflow: hidden;
  border-bottom: 2px solid white;
}

.nav ul li {
  float: left;
  padding: 0 56px;
  height: 62px;
  text-align: center;
  line-height: 60px;
}

.nav ul li:first-child {
  padding: 0 40px;
}

.nav ul li a {
  color: #333;
  font-size: 16px;
  display: block;
  padding: 0 12px;
}

.nav ul li a:hover {
  color: #00A9FF;
  border-bottom: 2px solid #00BAFF;
}

.main1 {
  overflow: hidden;
  background: #F7F9FC;
}

.main1_1 {
  width: 1000px;
  margin: 0 auto;
  height: 300px;
}

.main1_1 h2 {
  font-size: 30px;
  color: #1C253C;
  padding-top: 70px;
}

.main1_1 p {
  font-size: 14px;
  color: #2D3A59;
  line-height: 24px;
  margin-top: 14px;
}

.main2 {
  overflow: hidden;
}

.main2_1 {
  width: 1000px;
  margin: 0 auto;
  height: 520px;
}

.main2_1 h2 {
  font-size: 30px;
  color: #1C253C;
  text-align: center;
  margin-top: 50px;
}

.main2_1_bottom {
  overflow: hidden;
  margin-top: 40px;
}

.main2_1_bottom1,
.main2_1_bottom2,
.main2_1_bottom3 {
  border-radius: 6px;
  width: 320px;
  background-image: -webkit-gradient(linear, left top, left bottom, from(rgba(0, 186, 255, 0.06)), to(rgba(0, 186, 255, 0.00)));
  height: 340px;
  float: left;
  position: relative;
}

.main2_1_bottom2 {
  margin: 0 20px;
}

.main2_1_bottom1 img {
  position: absolute;
  top: 120px;
  left: 110px;
}

.main2_1_bottom2 img {
  position: absolute;
  top: 120px;
  left: 110px;
}

.main2_1_bottom3 img {
  position: absolute;
  top: 120px;
  left: 110px;
}

.main2_1_bottom1 h3 {
  font-size: 20px;
  color: #1C253C;
  margin-top: 22px;
  position: absolute;
  top: 215px;
  left: 120px;
}

.main2_1_bottom2 h3 {
  font-size: 20px;
  color: #1C253C;
  margin-top: 22px;
  position: absolute;
  top: 215px;
  left: 120px;
}

.main2_1_bottom3 h3 {
  font-size: 20px;
  color: #1C253C;
  margin-top: 22px;
  position: absolute;
  top: 215px;
  left: 120px;
}

.main2_1_bottom1 p {
  font-size: 14px;
  color: #2D3A59;
  margin-top: 13px;
  position: absolute;
  top: 265px;
  left: 39.35px;
}

.main2_1_bottom2 p {
  font-size: 14px;
  color: #2D3A59;
  margin-top: 13px;
  position: absolute;
  top: 265px;
  left: 31.58px;
}

.main2_1_bottom3 p {
  font-size: 14px;
  color: #2D3A59;
  margin-top: 13px;
  position: absolute;
  top: 265px;
  left: 55px;
}

.main3 {
  overflow: hidden;
  background: #F7F9FC;
}

.main3_1 {
  width: 1000px;
  height: 720px;
  margin: 0 auto;
}

.main3_1 h2 {
  font-size: 30px;
  color: #1C253C;
  padding: 60px 0;
  text-align: center;
}

.main3_1_top {
  overflow: hidden;
  border-bottom: 2px solid rgba(98, 119, 192, 0.16);
}

.main3_1_top ul {
  width: 920px;
  margin: 0 auto;
  overflow: hidden;
}

.main3_1_top ul li {
  font-size: 16px;
  color: #1C253C;
  height: 40px;
  box-sizing: border-box;
  padding: 0 15px;
  cursor: pointer;
  float: left;
  margin: 0 46px;
}

.main3_1_bottom {
  overflow: hidden;
}

.main3_1_bottom1 {
  width: 800px;
  overflow: hidden;
  display: block;
  margin: 0 auto;
  padding-top: 60px;
}

.main3_1_bottom2 {
  width: 800px;
  overflow: hidden;
  display: none;
  margin: 0 auto;
  padding-top: 60px;
}

.main3_1_bottom3 {
  width: 800px;
  overflow: hidden;
  display: none;
  margin: 0 auto;
  padding-top: 60px;
}

.main3_1_bottom4 {
  width: 800px;
  overflow: hidden;
  display: none;
  margin: 0 auto;
  padding-top: 60px;
}

.main3_1_bottom5 {
  width: 800px;
  overflow: hidden;
  display: none;
  margin: 0 auto;
  padding-top: 60px;
}

.main3_1_bottom1_left {
  margin-right: 50px;
  width: 530px;
  float: left;
}

.main3_1_bottom1_left h4 {
  font-size: 18px;
  color: #1C253C;
  font-weight: bold;
  margin-top: 20px;
}

.main3_1_bottom1_left p {
  font-size: 14px;
  color: #2D3A59;
  line-height: 18px;
  opacity: 0.7;
  margin-top: 8px;
}

.main3_1_bottom1_right {
  overflow: hidden;
  float: left;
}

.main3_1_bottom1_right img {
  width: 220px;
  border-radius: 6px;
}

.main4 {
  padding-top: 60px;
  overflow: hidden;
}

.main4 h2 {
  text-align: center;
  color: #1C253C;
  font-size: 30px;
}

.main4_img {
  margin: auto;
  width: 600px;
  padding: 70px 0 100px;
  overflow: hidden;
}

.main4_img img {
  width: 300px;
  float: left;
}

.main5 {
  background: url(../img/bg_contact.jpg) no-repeat;
  background-position: center;
  background-size: cover;
  height: 370px;
}

.main5_1 {
  width: 1000px;
  margin: 0 auto;
}

.main5_1 h2 {
  font-size: 30px;
  color: #1C253C;
  padding-top: 110px;
}

.main5_1 p {
  font-size: 14px;
  color: #2D3A59;
  opacity: 0.7;
  margin-top: 18px;
  line-height: 20px;
}

.main5_1 p:last-child {
  margin-top: 0;
}

.main5_1 button {
  width: 120px;
  background: #00A9FF;
  border: #00A9FF;
  font-size: 16px;
  color: #fff;
  height: 40px;
  border-radius: 4px;
  line-height: 40px;
  cursor: pointer;
  margin-top: 14px;
}

.footer {
  overflow: hidden;
  background: #2c323b;
  text-align: center;
  color: #fff;
  padding: 50px;
  font-size: 16px;
}